Kuji Masamune

One fateful day, Yuuto, a typical high school student, stumbles upon a cryptic tarot card near his bedside. His parents' revelation changes everything - as the descendant of demonkin, he's destined to ascend as the next Demon Lord. Thus begins Yuuto's journey to a sinister academy where he hones his demonic talents to claim his rightful title, all the while navigating the complexities of acquiring a harem.

This is a story of girls who risk their youth! Reina is a transfer student who came to Tokyo from Hokkaido. Her reason coming to Tokyo is... 「EDM Club」, a club based on DJ activities! But, the EDM Club that Reina dreamt about everyday is somehow not popular in her new school...? In the near-future Tokyo, the girls' DJ battles are about to unfold! A story driven by music, will now begin―

As a child, Hayato promised to marry his first love, Seraphy. Fifteen years later, he has become one of the world's greatest spies, all while never falling for the temptations of enemy agents. A mission to expose rival operatives turns chaotic when Hayato reunites with Seraphy, and each realizes the other is a spy. Now the pair must live together, torn between love and duty. The question is... who will break first?

Yuuto is an ordinary high school boy who, one day, notices a mysterious tarot card by his bed. He shows it to his parents, who give him the good news - as the son of demonking, he is eligible to become the next Demon Lord. As such, Yuuto is soon brought to a demonic academy in order to improve his devilish skills and earn the title of demon lord. And, you know, get a harem along the way.

Kakeru Meguri is a second-year student at Minami Myojin Public High School who plays the character named in the VRMMORPG <>. One day a player suddenly appear in front of his eyes, which turn out to be his popular beauty classmate Ririko Asagiri. She believes that if they defeat the demon king they will be able to return to the real world, in fact Kakeru knows that if a player dies in the game, their consciousness will disappear in the real world. To save an important person, Kakeru possesses the most powerful forbidden force, "Awaken Adult Mode". Ecstas Online was discontinued due to the death of Kakashi Oniyazu on February 2, 2019.

Hida Kizuna possesses the HHG (Heart Hybrid Gear) ability, but it is not strong enough to make him particularly important. His older sister calls him to transfer to a strategic defense school, where many of the students (many of which are large-breasted girls) use their HHG abilities to fight invaders from another world while wearing extremely skimpy pilot outfits. Kizuna's fighting ability doesn't measure up, but his sister has another plan– apparently having erotic experiences with Kizuna will allow the girls to replenish their energy or power-up.